Simplicity 1691998 User manual

Brand: Simplicity

Model: 1691998

Category: Lawnmowers

Type: User manual

This manual is also suitable for

OPERATOR’S

MANUAL

42”/48”

Turbo Blower Assembly

Mfg.

No:

1691810

Mfg. No. 1691998

FORM 170460604

PRINTED IN U.S.A.

12/93-3ooccI

HEX CAPSCREW

PLAIN WASHER LOCKWASHER

NUT

HEX CAPSCREW IDENTIFICATION

Shown below are actual size hex heads for standard screw sizes.

Example: a

l/4”

screw has a

7116

head and.thus requires a

7716

wrench. To measure length, use the scale below.

~0000

t/2” Heed 7fl6” Head

34”

Head

518”

Head

6716”

Head screw with screw with

screw with screw with

screw

with

5716”

SD. l/4” SC.

112”

SD.

7116”

S.D.

310”

SD.

Shaft Diameter

2 3

WASHER AND NUT IDENTIFICATION

Place the washer or nut on the above scale to

determine inside diameter. The actual

insides

di-

ameter can vary

l/16

inch. Use the scale for

comparison.

STANDARD

FASTENER

IDENTIFICATION

CHART

Hardware sizes are given in the

illustrations throughout this

manual.

If a washer or nut is identified

as “washer.

l/2” or “nut.

172”.

this means the inside diameter

l/2

inch.

If a screw is identified as

‘Wrew.

l/2

2”.

this means the shaft

diameter is

l/2

inch and the

shaft of the screw is 2 inches

long. If

screw is identified as

“screw.

l/2-16~2”.thenumber

“16”

means that the screw has

16 threads per inch.

SAMPLE:

SCREW

iDENllflCAllON

Screw

l/2

Shaft

Diameter

Shaft

Diameter

Screw

Length

.$J

*.y

SAMPLE: NUT IDENTlFlCATlON

‘:i

Nut.

112

Inside

Diameter

Table of Contents

Safety Decal ................................

Safety Rules

................................

Installation

Lawn Tractor

...........................

Front-Cut Rider .........................

Operation

..................................

Standard Fastener Identification Chart

.......

......

. . . . 2

. . . .

NOE

The additional weight of the turbo blower may cause the end roller on the mower deck to wear faster. For

this reason, a replacement roller is supplied with the turbo blower kit.

,Safety

Decal

DANGER

ROTATING BLADES

SHUT OFF MOWER

AND TRACTOR

BEFORE SERVICING

OR CLEANING BLOWER

AND MOWER.

Located on Blower Housing

Safety Rules

Read these safety rulesand the safety rules in

yo,ur

Operator’s

Manual and follow them closely. Failure to obey these rules

could result in loss of control of vehicle, severe personal injury

to yourself, or damage to property or equipment. The triangle in the

text signifies important cautions or warnings which must be followed.

WARNING

When blower assembly is removed from mower deck, the deflector

must be installed as described in Operating Without Collection System.

Know the tractor or ridercontrolsand how

to stop quickly. READ THE OWNERS

MANUAL.

2. Disengage the PTO, shut the engine off

and wait for all moving parts to stop before

attaching, adjusting, or disconnecting any

part of the collection system.

3. Check the collection system to make sure

it is bolted tightly to tractor or rider.

4. Check the latch handle to make sure it is

engaged so the dump cart’s box is locked

to the frame.

5. Look behind to make sure the area is clear

before backing up.

6. DO NOT turn sharply when the tractor or

rider is alongside a building or any object.

7. DO NOT carry passengers in the cart.

CAUTION: For added tractor or rider

stability and to prevent tipping or loss of

control;

a. Use reduced speed on uneven ground

and when turning corners.

b. Reduce loads on hillsides. It is rec-

ommended that the collection system

be kept only half full when negotiating

any slopes. Start mowing on slopes

when the collection system is empty.

Mow up and down the face of slopes;

never acrossthe face of any slope.

AWARNING:

When operating on

slopes, use

,front

countennreight.

Never

operate on slopes greater than 30%

(16.7”).

10.

ACAUTION: Objects may be thrown

from mower.

For your safety:

a. DO NOT remove the cover while the

mower blades are tyrning. Shut off the

engine before openmg the door or

removing the grass chute.

b. Be sure the complete collection

system is in place (cover secure and

grass chute connected) before

operating the mower.

c. DO check the twin bag cover fre-

quently for wear and tear. Replace with

new cover for safety protection.

11. For best results when mowing grass: Set

the mower to cut from 1 to 2 inches of

grass. If grass isexceptionallytall, set your

mower as high as possible for first cutting.

Lower cutting height at succeeding

cuttings until proper height is reached. It

may be necessary to mow tall grass at a

slower tractor speed.

installation

Lawn

,Tractors

NOTE

Two spacers are packaged with turbo biower.

Installation on tractor requires use of

4-l/16”

spacer (see step 11); the

1/2”spacerwill

not be

used.

1. Remove mower deflector and arbor cover as

follows:

a. Remove the mower deflector by removing

two carriage bolts, lockwashers and nuts.

Install this hardware on the deflector for use

when blower is removed for side discharge.

b. Remove the right hand arbor cover (A, figure

1) by removing washers and nuts in frontthat

hold cover to deck. Also, remove nuts

(8)

and

washers that secure rear tabs to arbor.

2. Slip mower belt off the right hand pulley.

Remove the pulley from the arbor by removing

capscrew

(D, figure 2) and washers (F). Save

washers for reinstallation. Use wood block to

orevent blade from turning.

NOTE

Later model decks have

l-1/2”

taptite screws,

rather than 1” taptite screws, location A, figure

2. If

capscrew protrudes 5/S” above arbor, new

capscrews do not need to be installed

3. Remove brake spring or spring anchor (if

equipped) and two taptite screws from arbor at

locations A, figure 2. Replace these with two

5/16-18x l-1/2 capscrews (A).

capscrew

B. Arbor Bracket E. Belt Stop, Front

C. Notch F. Washers

4. Before installing arbor bracket (B, figure 2 &A,

figure3),

removewasherfrom underneath blade

brake bracket (rear capscrew). Arbor bracket is

same thickness as washer and will replace

washer. Loosen the front flange nut and remove

the rear flange nut on the blade brake bracket.

NOTE

Rear belt stop should be installed facing inside

of deck.

5. Install the arbor bracket (A, figure 3) and rear

belt stop (B) as shown. Note the different holes

for the 42” and 43” mowers. On the 42” deck,

install a

jamnut

at rear bracket location instead

of flange whiz nut. Tighten nut (F) snug only -

belt stop will be adjusted in step 8.

Figure 1.

A. Arbor Cover

B. Nut dover

Figure 2.

Figure 3.

A Arbor Bracket C.

CapSxew

Lockwasher

B. Belt Stop D. Large Washers

F. Jam Locknut

NOTE

Front belt stop should be installed facing

outside of deck.

‘6. Install

thefront

belt stop (A, figure4)

onto5/16-

l-1/2

capscrew

(installed in step 3) as

shown. If removed, reinstall brake spring or

spring anchor (F) before flange nut(G). Tighten

nut (E) snug only

belt stop will be adjusted in

step 8.

G Mower Decks

Figure 4.

Belt

stop

Capscrew

C. Large Washer

n**.“rchn*

E. Nut

Spring or Spring

Anchor

G. Flange Locknut

7. Install new double-groove arbor pulley (D,

figure 5) with hub down. Use new 7/16-14

1/4

capscrew

and washers removed in step 2.

Torque

to~55

to 70 ft. Ibs. Use wood block to

prevent blade from turning. It may be necessary

to add washer(s) (C, figure 5, two provided)

underneath the new pulley to properly align

brake pad and bottom groove. Referto figure 5.

Add washers to adjust top-to-bottom alignment:

l/16” clearance must be adjusted after belt is

installed and PTO is engaged.

8. Slip the mower drive belt onto the lower groove

of the new pulley (D, figure 2). With the mower

PTO engaged, adjust the belt stops

l/8”

from

belt. Tighten the hardware.

9. If mower is equipped with blade brake, adjust

the brake after installing new double groove

pulley as follows:

a. Engage the PTO lever. Be sure that mower

drive belt tension is correctly adjusted (see

Operator’s Manual).

b. Inspect the brake pad (A, figure5) to V-pulley

(B) clearance. With PTO engaged, clearance

should be

l/l6

inch as shown in figure 5.

c. If adjustment is required, turn adjusting nuts

(A, figure 6) until proper clearance is

reached.

Figure 5.

A. Brake Pad

B. Bottom Groove

C. Washers (If required)

D. Double-Groove Pulley

Figure

A. Blade Brake Adjustment Nuts

10. The baffle (A, figure 7) is installed in the blower

housing for use with 42” mower. For use with

48” mower, remove the baffleand install in holes

marked 48”.

Figure 7.

A Battle

NOTE

On42”and 48” mowersthecapscrewinstalled

in next step is used in the hole occupied by a

screw held in place by a retaining nut. (This

screw secured the right-front corner of the

arbor cover.) Remove this screw(s) from

mower deck by tapping out with a hammer or

prying off the retaining nut.

11. Install the pulley cover (B, figure 8) with

hardware shown, items E through M. (Figure 8

shows blower housing but it is not installed at

this point of the procedure.)

. .

-..._

A. Blower Housing

. Pulley Cover

C. Hook

D. Clip

Capscrew

F. Washer,

5116

G. Large Washer, 5/16

H. Spacer

Lockwasher, S/16

J. Nut. 506

La&

Washer, S/16

L. Large Washer, 5/16

M. Locknut, S/16

N. Wing Nut

12. Install wing nut (D, figure 9) as follows:

a. Remove existing hardware from front end of

stone guard.

b. From inside deck, install new

5/16-18 x

2-l/4

carriage bolt (F, figure 9). Then install the cup

(A), 5/16 lockwasher (6). and

506

nut (C).

Tighten the nut.

c. Thread the wing nut (D) far enough onto the

screw so that the 5/16 locknut (E) can be

threaded on flush with the end of screw.

13. Install the new baffle (A, figure 10) in deck on

stone guard using existing hardware. Hardware

may be installed with nut to inside or nut to

outside.

Figure 10.

A. Battle

B. Carriage Bolt

C. Mower Discharge

Omening

14. Install the blower assembly as follows:

a. Pivot cover (B, figure 8) away to expose the

arbor.

b. Align the notch (G, figure 11) with spaceron

arbor bracket. Align spacer(C) with notch

(C,

figure 2) on arbor bracket. Slide theassembly

into place as shown in figure 13, while

aligning front notch between cup and wing

nut (D, figure 13). Tighten wing nut.

Figure 11.

A. Blower Drive Belt

B. Idler Pulley C. Space

D. Belt Retainer

E. Baffle

F. Driven Pulley

G. Notch

Figu’ie

A. cup

q . Lockwasher,

5116

C. Nut.

5116

Q. Wing Nut

E. Lrxknut,

5116

F. Carriase Bolt

Hdok

B&e

Over Stone Guard

c. Place mower in low cut position. Raise the

flap (A, figure 12) and push on the belt

retainer (E) to obtain slack in the belt. Install

the blower drive belt (D) in the top groove of

the pulley(B).

d. Rotate the pivoting cover (A, figure 13) into

place and attach the hook (B) to the clip (C)

on the housing.

Figure 12

A. Flap

Pulley

Ben

D. Drive Belt

Belt

Retainer

Figure 13.

pdley Cover

Hook

C. Clip

D. Wing Nut

Installation

Front Cut Riders

NOTES

1. Two spacers are packaged with the turbo

blower. Installation on the Front-Cut Rider

requires use of the

l/2”

spacer (see step 14).

The

4-l/16”

spacer will not be used.

2. The replacement right hand belt cover (seestep

15),along

with

thenew3/8-16x2-1M”capscrew

for the right hand idler pulley (see step

packaged with the collection system.

INSTALLATION

1. Remove right hand mower belt cover by

removing flat washer and flange nut (A) and

front taptite screw (B). Loosen hardware at

center location (C). Belt cover can bediscarded

as new belt cover and arbor cover will replace

original cover. Save all hardware for installing

new cover.

2. Remove the deflector mounting hardware and

reinstall in deflector for future use. Deflector

must be reinstalled if turbo blower is removed

from mower deck.

Figure 1. (Later

Mode\1

Shown)

A. Flange Nut

B. Tapttle Screw

C. Mounting Hardware - Center Location

WARNING

Use caution when moving spring-loaded idler

pulley. Spring tension isstrong. Do not remove

belt from spring-loaded idler pulley. Remove

belt from left and right hand pulleys.

3. Pull spring-loaded idler pulley away from belt

and remove belt from right hand arbor pulley

and idler pulley.

4. Remove the idler pulley

capscrew

(installed

from the top) and install new 3/8-16

2-114”

capscrew

from the bottom. Pulley bracket

mounting hardware may need to be loosened to

install 2-l/4”

capscrew

(A) from bottom. Install

existing flat washer

(8)

on top of bracket, pulley,

existing flat washer(B),

lockwasher(C),and

nut

(D) to secure capscrew. Install large washer(E)

onto capscrew.

Capscrew

(A), lockwasher (C),

nut (D), and large washer(E) are packaged with

the collection system.

NOTE

Existing flange nut will be used in step 15 to

secure new belt cover.

Pulley

igure 2.

2-114”

Capscrew

B. Flat

Washer (Existing)

Lockwasher

D. Nut

E. Large Flat Washer,

13/X?

l-l/2X

118

Remove the capscrew, lockwasher, and flat washer

securing right hand arbor pulley. Retain the washers

for reinstallation (step 9). Use a wood block to

prevent blade from turning.

SunRunnerNanguard

Models

6. On early models without bet stop (A, figure 3)

remove two self-tapping screws from arbor and

install two

.5/l

6-18

l-1/2”

capscrews (A, figure 3).

Parts will be installed on these capscrews in steps 7

and 8 as shown in figures 3 and 4.

7. Install the bracket (F, figure 4) with hardware as

shown in figures 3 and 4. On early models, install the

rear belt stop (C) facing the inside of mower deck as

shown in figure 4. Use washers (B

D) and

lo&washer (H) only for securing belt stop (C) on

early models. Use jam nut at locations A and E.

On early models, install the front belt stop (D, figure

3) onto front

capscrew

(installed in step 6) with

washer,lockwasher,andnut.Tightensnugonly.The

beL

stop should face the inside of mower deck as

shown in figure 3.

Figure 3. (Early Model)

capscrews,

l-112’

C. Rear Belt Stop

B. Rear Mounting Bracket

D. Front Belt

Stop

FCll3OO Models

6. On later models with

factoty-installed belt stop (A,

figure

3A), it is not necessary to change capscrews

as new belt stops are not required.

7. install the bracket (F, figure 4) with hardware as

shown in figure 3A and 4. Use

jamnuts (A & E, figure

4) to secure bracket (F).

Figure 3A. (Later Model)

A. Ben Stop (Existing)

B. Rear Mounting Bracket

(A,

figure

3A).

Figure 4.

A. Jam Locknut,

5/16

B. Washer,

5116

Beit

stop

Capecrew,

6116-18

l-112

H. Lockwasher, 5/16

spacer

D. Washer,

5116

Washer,

spaal

E. Jam Locknuf

5116

K. Screw, Self-Tapping, I/4-20

F. Arbor Bracket

L. Left-Hand

Mtg.

Hole

Slip the mower drive belt (A, figure 5) around the

bottom groove of double-groove pulley (B).

Install pulley with hub down and secure with

new

7/l

6-14 x 2-l

/4”

capscrew (C) and washers

(D and E) removed in step 5. Make sure splines

arecorrectlyalignedand torquecapscrewto55-

60 ft. Ibs. Use a wood block to prevent the blade

from turning.

10. Reinstall the mower drive belt by pulling on the

spring-loaded idler pulley to provide slack in

belt. With belt installed, adjust the belt stops

l/18”

from belt and tighten mounting hardware.

Figure 5.

A. Mower Belt

B. Double-Groove Pulley

Capscrew,

Z-114”

D. Lockwasher ,

E. Flat Washer

11. The baffle (A, figure 6) is installed in the blower

housing for use with 42” mower. For use with

48” mower, remove the baff le and install in holes

marked 48”.

Figure

A. Baffle

12. Install wing nut assembly as follows:

a. Remove existing hardware from front end of

stone guard.

b. From inside deck, install new

5/16-18x

2-l/4

carriage bolt (E, figure7) through deck, stone

.guard,

washer, and roller bracket. Then

install the large washer (A), lockwasher (F),

and nut (B).

c. Thread the wing nut (C) far enough onto the

screw so that the 5/16 locknut (D) can be

threaded on flush with the end of screw.

NOTE

On front-cut riders, do not install cup (G) onto

capscrew to retain blower housing. Cup is used only

for tractor applications.

Figure 7.

A. Large Washer

E. Carriage Bolt

B. Jam Nut,

5/16

Lockwasher

Wing

Nut

G. Cup

D. Locknut,

5116

13. Install the new baffle (A, figure 8) in deck on

stone guard using existing hardware. Hardware

may be installed with nut to inside or nut to

outside.

14. On new arbor cover, install on top of weld

bolt

(A,

figure 9) the largest washer (B

l-i/Z”

O.D.),

l/2’

spacer (C), lo&washer(D), and nut (Q as shown in

figures.

(Largeflatwasher(F) shownwillbeinstalled

in next step).

15. On

2-l/2” idler cover bolt, install

beit

cover to deck

reusing front taptite screw (G) removed in step 1.

Install flat washer (I) and flange nut

(J,

removed in

step 4) to secure belt cover. Tighten flat washer and

flange nut (H) loosened in step 1.

H&k

8&fle

Over Stone Guard

‘igure 8.

a Baffle

Carriage Bolt

C. Mower Discharge Opening

Figure 9.

Weld Bolt

8. Large Washer,

I-112”

O.D.

C. Spacer,

112”

Lockwasher

E. Nut

F. Large Washer

0. Taptite

Screw

H. Center Hardware

Flat Washer

J. Flange Nut

16. Make sure that flat washer (F, figure

is on top of

spacer assembly and install new arbor belt cover (A,

figure 10) as shown in figure 10. Secure with flat

washer (l-1/4” O.D.) and locknut

(8).

Belt cover

should be free to pivot.

17. Install the blower assembly as follows:

a. Align th& notch on blower assembly with

spacer on arbor bracket. Align spacer on

blower assembly with notch on arbor bracket.

Slide the assembly into place as shown in

figure 10 while aligning front notch between

cup and wing nut. Tighten wing nut (C, figure

10).

b. Raise the flap (D, figure 10) and install the

blower drive belt (E) in the top groove of the

pulley. Push on lever (F) to provide slack to

install belt.

NOTE

On later models with single (front) belt stop,

belt stop must be on outside of both mower

belt and turbo belt.

Figure

10.

A. Arbor Cover

’

B. Locknut

Wing

Nut

D. Flap

E. Blower Belt

Lever

G. Rat Washer

(l-1/4’

O.D.)

18. With belt installed, pivot arbor cover (A, figure

11) into position as shown in figure 11. Secure

with rubber strap (B) to blower housing.

:igure

11.

Arbor Cover

Rubber Strap

Operation

WARNING

For safety reasons, grass and debris should

not be removed from any

part

of turbo or

collection system until engine is shut off, key

removed, and all moving parts have stopped.

WARNING

Before raising cart or twin-bag cover, shut off

engine, remove key, and set parking brake.

BEFORE OPERATION

Clear the lawn of all sticks, stones, wire and other

debris which maybecaughtorthrown bythemower

blades.

Clean the tube with mild detergent (other products

may damage tube). The flow of grass can be seen

through the tube while moving.

Check grass condition. If wet, wait until later in the

day. If grass is wet plugging may occur.

For -efficient bagging, air circulation under the

mower deck, through the chute and into the bag is

very important. For this reason, you should remove

grass and debris from underside of mower deck,

discharge chute and cover.

The tube and elbow can be removed

asan assembly

for cleaning. ,

OPERATING WITHOUT COLLECTION SYSTEM

When blower assembly is removed

from

mower deck. the deflector must be installed as

described in this section.

1. To operate without the grass collection system,

remove the blower assembly by loosening the

front wing nut on blower housing and slipping

belt off of the pulley. Reinstall the mower

deflector (figure 1) and the original hardware.

Install two carriage bolts from bottom and install

washers and nuts (A). Install the front washers

(8) and nut (C). Be sure flat washers and

lockwashers are used at all three locations.

Figure 1.

A. Nut

6. Washer

C. Nut

2. Pivotthecover(A,figure2)

overthearborpulley

and hook rubber strap into the notch (C) on the

arbor bracket.

A. cover

Rubber Strap

C. Notch

Figure 2. Front Cut Rider Shown

.:::).‘,:,::::

~._,,

..:,,

:::

TORQUE SPECIFICATIONS FOR

STANDARD MACHINE HARDWARE

TOLERANCE

+200/o

SIZE

8-32

8-36

lo-24

lo-32

l/4-20

l/4-28

5116-18

5116-24

318-16

318-24

7116-14

7116-20

l/2-13

112-20

9116-12

9116-18

518-11

518-18

314-10

3/4-16

718-g

718-14

1-8

1-12

SAE GRADE #2 SAE GRADE

A15

SAE

GRADE

InJLbs.

In./Lbs.

InAbs.

Ft.lLbs.

Nm.

Ft./Lb.s.

Nm.

Ft.Rbs.

Nm.

2.1

30 3.4 41 4.6

2.3

31 3.5

43 4.9

3.1

43 4.9

60 6.8

31 3.5

49 5.5

68 7.7

7.6

8 10.9

16.3

8.6

10 13.6

14 19.

15.

17 23.1 25 34.

16.3

19 25.8

25 34.

,20

27.2

30 40.8 45 61.2

'23

31.3

35 47.6

50 68.

40.8

.68.

70 95.2

47.6

55 74.8 80 108.8

68.

75 102. 110 149.6

74.8

90 122.4

120 163.2

83.4

110 149.8

150' 204.

102.,

120 163.2

170 231.2

122.4

150 204. 220 299.2

100

136.

180 244.8 240 326.4

160

217.6

260 353.6 386 525.

180

244.8

300 408. 420 571.2

140

190.4

400 544. 600 816.

155

210.8

440 598.4 660 897.6

220

299.2

580 788.8

900 1,224.

240

326.4

640 870.4

1,000 1,360.

NOTE:

1. These torque values are to be used for all hardware

excluding: locknuts, self-tapping screws, thread

forming screws, sheet metal screws and socket head

setscrews.

2. Recommended seating torque values for locknuts:

a. For prevailing torque locknuts

use 65% of grade 5

torques.

b. For flange whizlock nuts (and screws)

usa

135%

of grade,5 torques.

3. Unless otherwise noted

on assembly drawings all

torque values must meet this specification.

BOLTHEADMARKING

S.A.E.GRADE:

Simplicity 1691998 User manual

Brand: Simplicity

Model: 1691998

Category: Lawnmowers

Type: User manual

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